Configure BucketCacheTo configure BucketCache, you have to specify values for certain parameters in the hbase-env.sh and hbase-site.xml files.

BlockCache compressionYou can use BlockCache compression, when you have more data than RAM allocated to BlockCache, but your compressed data can fit into BlockCache. The savings must be worth the increased garbage collection overhead and overall CPU load.

Enable BlockCache compression You can enable BlockCache compression by setting an appropriate value for the cachecompressed property in the hbase-site configuration file.

BlockCache-and-MemStore-PropertiesYou can edit the hfile.block.cache.size and hbase.regionserver.global.memstore.upperLimit properties in the hbase-site.xml configuration file.